My Publick JWK URL is not working

[RipunjayShuklaM]

I have developed an LTI 1.3 integration that is working successfully, including the Names & Roles service and Grade Passback. It works correctly with a Public Key or JWK value, but it is not working with my Public JWK URL (KeySet URL). My JWK URL is https://mbx-staging.getmagicbox.com/api/mag/lti/v1_3/keyset/690/jwks. Could you please help me identify the issue?

The response value is:

{
  "keys": [
    {
      "kty": "RSA",
      "e": "AQAB",
      "use": "sig",
      "kid": "4VVX",
      "alg": "RS256",
      "n": "ALt-j9QLyFJujrUU4XaL--twnv-RZ3mrfzDX71Q_FB7IodKQ5WjKNP3S-GgBgR2fcRL5iO-Kw62K1Mt130DzOGFf_Crt3Q9b5igoiNO7gxNDKPUmAmdT9aV6nFSMgTPthzWn-GpiSZK-7bPTl-frAsraX-w-NkNzTbLhEuelVMYtOd-Xndkz-EWEIoAUZ-2O1FFjCc5gr0vrPn4wzDB-xTiRcqeWr_lyDOs_2UzZ7RoBmkB1o83DZidEb8aEFjMR3m7-J-szaIAePeJSqcZOkFK_ah3OEtnwd_8sihJFYJMzsh4VlADv8rZPydeI0hIVKiFiNqkjptbze9jhVsfVYb0="
    }
  ]
}